vg_log.h

   1 #ifndef VG_LOG_H
   2 #define VG_LOG_H
   3
   4 #include <stdarg.h>
   5 #include <string.h>
   6 #include <malloc.h>
   7 #include "vg_stdint.h"
   8 #include "vg_platform.h"
   9
  10 #define KNRM  "\x1B[0m"
  11 #define KRED  "\x1B[31m"
  12 #define KGRN  "\x1B[32m"
  13 #define KYEL  "\x1B[33m"
  14 #define KBLU  "\x1B[34m"
  15 #define KMAG  "\x1B[35m"
  16 #define KCYN  "\x1B[36m"
  17 #define KWHT  "\x1B[37m"
  18
  19 #define PRINTF_v2f( V2 ) "%.4f %.4f\n",           V2[0], V2[1]
  20 #define PRINTF_v3f( V3 ) "%.4f %.4f %.4f\n",      V3[0], V3[1], V3[2]
  21 #define PRINTF_v4f( V4 ) "%.4f %.4f %.4f %.4f\n", V4[0], V4[1], V4[2], V4[3]
  22
  23 #ifdef VG_GAME
  24 static SDL_SpinLock log_print_sl;
  25 #endif
  26
  27 struct vg_log
  28 {
  29    char buffer[64][96];
  30    u32  buffer_line_count, buffer_line_current;
  31 }
  32 static vg_log;
  33
  34 void _vg_console_append_to_log( const char *str )
  35 {
  36    if( vg_log.buffer_line_count < vg_list_size( vg_log.buffer ) )
  37       vg_log.buffer_line_count ++;
  38
  39    char *dest = vg_log.buffer[ vg_log.buffer_line_current ++ ];
  40
  41    for( int i=0; i<vg_list_size( vg_log.buffer[0] ); i++ )
  42    {
  43       if( !str[i] || ( i == vg_list_size(vg_log.buffer[0])-1 ) )
  44       {
  45          dest[i] = '\0';
  46          break;
  47       }
  48
  49       dest[i] = str[i];
  50    }
  51
  52    if( vg_log.buffer_line_current >= vg_list_size( vg_log.buffer ) )
  53       vg_log.buffer_line_current = 0;
  54 }
  55
  56 VG_STATIC void _vg_log_write( FILE *file, const char *prefix,
  57                               const char *fmt, va_list args )
  58 {
  59 #ifdef VG_GAME
  60    SDL_AtomicLock( &log_print_sl );
  61 #endif
  62
  63         char buffer[ 4096 ];
  64         int i, j;
  65
  66         for( i=0; i<vg_list_size( buffer ); i ++ )
  67         {
  68                 if( prefix[i] )
  69                         buffer[i] = prefix[i];
  70                 else
  71                         break;
  72         }
  73
  74         j = i + vsnprintf( buffer + i, vg_list_size( buffer ) - i -12, fmt, args );
  75         strcpy( buffer + j, KNRM );
  76
  77         fputs( buffer, file );
  78
  79    _vg_console_append_to_log( buffer );
  80 #ifdef VG_GAME
  81    SDL_AtomicUnlock( &log_print_sl );
  82 #endif
  83 }
  84
  85 VG_STATIC void _vg_log_init(void)
  86 {
  87 }
  88
  89 #define VG_LOGX( NAME, PIPE, PFX )           \
  90 VG_STATIC void NAME(const char *fmt, ...)    \
  91 {                                            \
  92    va_list args;                             \
  93    va_start( args, fmt );                    \
  94    _vg_log_write( PIPE, (PFX), fmt, args );   \
  95    va_end( args );                           \
  96 }
  97
  98 VG_LOGX( vg_success, stdout, (KGRN "success" KWHT "| " KGRN) )
  99 VG_LOGX( vg_info,    stdout, (KNRM "   info" KWHT "| " KNRM) )
 100 VG_LOGX( vg_warn,    stdout, (KYEL "   warn" KWHT "| " KYEL) )
 101 VG_LOGX( vg_error,   stderr, (KRED "  error" KWHT "| " KRED) )
 102 VG_LOGX( vg_low,     stdout, (KWHT "    log" KWHT "| " KWHT) )
 103
 104 #endif /* VG_LOG_H */